Complete plantar dislocation of the metatarsal head of the 2nd toe, irreducible by closed methods, is a rare injury. As with similar lesion in the hand, closed reduction is impossible because of interposition of volar plate. So author describes a case treated at Armed Forces Hospital by open reduction after failure of closed reduction, and anatomy of the 2nd M-P joint and pathomechanics of this rare dislocation are described.